EP 0748857 A1 19961218 - ELECTRODEPOSITION COATING METHOD AND AGENT
Title (en)
ELECTRODEPOSITION COATING METHOD AND AGENT
Title (de)
ELEKTROLYTISCHES BESCHICHTUNGSVERFAHREN UND MITTEL
Title (fr)
PROCEDE ET AGENT DE REVETEMENT ELECTROLYTIQUE
Publication
Application
Priority
- JP 9401624 W 19940929
- JP 24686393 A 19931001
Abstract (en)
An electrodeposition coating method characterized in that in electrodeposition coating of a water soluble composition of a polyimide precursor which is prepared by using 1,2,3,4-butanetetracarboxylic acid or its imide-forming derivative and a diamine and has a percentage of residual acid value of 30 to 3 %, there is added previously a water soluble solvent selected from the group consisting of an alcoholic solvent, N-methyl-2-pyrrolidone, dimethylformamide and dimethylacetamide to the above-mentioned composition, and an electrodeposition coating agent used therefor. There can be provided the electrodeposition coating method practicable for the use of a water soluble polyimide composition which is capable of forming a uniform baked coating film having a continuous surface and being excellent in adhesivity to substrate and in toughness.
IPC 1-7
IPC 8 full level
C09D 5/44 (2006.01); C09D 179/08 (2006.01); C25D 13/06 (2006.01)
CPC (source: EP US)
C09D 5/4461 (2013.01 - EP US); C09D 179/08 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0748857 A1 19961218; EP 0748857 A4 19960904; JP H07102196 A 19950418; US 5820742 A 19981013; WO 9509897 A1 19950413
DOCDB simple family (application)
EP 94927810 A 19940929; JP 24686393 A 19931001; JP 9401624 W 19940929; US 61967096 A 19960523